Data Quality Reports for Session: 100230 User: gaun Completed: 06/27/2006

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D040228.1TWP/SONDE/C1 - Broken temperature sensortwpsondewnpnC1.b1
D040228.3TWP/SONDE/C1 - Bad RH sensorstwpsondewnpnC1.b1
D040606.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040627.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D040627.2TWP/SONDE/C1 - Bad RH in short interval alofttwpsondewnpnC1.b1
D040711.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D041011.3TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050105.1TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1
D050201.2TWP/SONDE/C1 - Bad RH at beginning of soundingtwpsondewnpnC1.b1


DQRID : D040228.1
Start DateStart TimeEnd DateEnd Time
02/07/2004234202/08/2004115
02/09/2004113302/09/20041233
04/05/2004233204/06/200415
04/22/2004115604/22/20041317
04/24/2004113004/24/20041312
04/29/2004113704/29/20041312
04/30/2004233605/01/2004112
05/03/2004233105/04/200415
05/05/2004113505/05/20041319
05/07/2004113205/07/20041315
05/11/2004114205/11/20041311
05/12/2004114505/12/2004126
05/18/2004113005/18/20041321
07/10/2004113007/11/20041255
07/13/2004113907/13/20041320
07/16/2004234607/17/200417
07/22/2004235507/23/2004140
07/26/2004234107/27/2004115
08/14/2004233008/15/200414
08/22/2004233508/23/200415
09/05/2004234009/06/2004119
09/14/2004232809/14/20042329
09/17/2004233209/18/200412
10/28/2004233610/29/2004057
11/28/2004235211/29/2004044
Subject:
TWP/SONDE/C1 - Broken temperature sensor
DataStreams:twpsondewnpnC1.b1
Description:
The temperature sensor on these radiosondes broke after launch
All the temperature-related data are incorrect.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)
  • Dry-Bulb Temperature(tdry)

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DQRID : D040228.3
Start DateStart TimeEnd DateEnd Time
02/06/2004234102/06/2004130
Subject:
TWP/SONDE/C1 - Bad RH sensors
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 12km).  The RH oscillates rapidly in a 20% range and the 
oscillation seems to stop when the temperature is below ~45 degC.  These are symptoms of 
failure in the ASIC (application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D040606.1
Start DateStart TimeEnd DateEnd Time
06/03/2004113206/03/20041212
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~15 %RH) and 
not so low (~50 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D040627.1
Start DateStart TimeEnd DateEnd Time
06/04/200401006/23/20042330
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~0 %RH) and 
not so low (~80 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D040627.2
Start DateStart TimeEnd DateEnd Time
06/21/200401006/21/2004011
Subject:
TWP/SONDE/C1  - Bad RH in short interval aloft
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit on this sonde failed about 31 minutes into 
the flight.  The RH values look reasonable from the surface to approximately 8.25 km at 
which point they begin to oscillate between 0 and 40%.  This behavior stops when the sonde 
reaches approximately 11.0km when the air temperature drops below -40 degC.  The 
oscillation stops at that point, though the RH remains higher than might be expected even under 
supersaturated conditions.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D040711.1
Start DateStart TimeEnd DateEnd Time
06/30/2004113006/30/2004124
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~2 %RH) and 
not so low (~90 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D041011.3
Start DateStart TimeEnd DateEnd Time
10/08/2004113110/08/2004120
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~1 %RH) and 
high (~80 %RH).  According to Vaisala these are symptoms of failure in the ASIC 
(application specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D050105.1
Start DateStart TimeEnd DateEnd Time
12/30/2004233012/31/200418
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 11km).  The RH oscillates rapidly between low (~5 %RH) and 
not so low (~70 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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DQRID : D050201.2
Start DateStart TimeEnd DateEnd Time
01/07/2005233001/08/200512
Subject:
TWP/SONDE/C1 - Bad RH at beginning of sounding
DataStreams:twpsondewnpnC1.b1
Description:
It appears that the RH sensor heating circuit failed during this portion of the sounding 
(approximately between 0km and 12km).  The RH oscillates rapidly between low (~2 %RH) and 
not so low (~80 %RH) and the oscillation seems to stop when the temperature is below ~40 
degC.  According to Vaisala these are symptoms of failure in the ASIC (application 
specific integrated circuit) that controls the heating.
Measurements:twpsondewnpnC1.b1:
  • Surface dew point temperature(dp)
  • Relative humidity scaled, by total column amount from MWR(rh)

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